/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.flink.runtime.resourcemanager;

import org.apache.flink.api.common.time.Time;
import org.apache.flink.configuration.Configuration;
import org.apache.flink.configuration.ResourceManagerOptions;
import org.apache.flink.util.ConfigurationException;
import org.apache.flink.runtime.resourcemanager.slotmanager.SlotManagerConfiguration;
import org.apache.flink.util.Preconditions;
import scala.concurrent.duration.Duration;

/**
 * Configuration class for the {@link ResourceManagerRuntimeServices} class.
 */
public class ResourceManagerRuntimeServicesConfiguration {

	private final Time jobTimeout;

	private final SlotManagerConfiguration slotManagerConfiguration;

	public ResourceManagerRuntimeServicesConfiguration(Time jobTimeout, SlotManagerConfiguration slotManagerConfiguration) {
		this.jobTimeout = Preconditions.checkNotNull(jobTimeout);
		this.slotManagerConfiguration = Preconditions.checkNotNull(slotManagerConfiguration);
	}

	public Time getJobTimeout() {
		return jobTimeout;
	}

	public SlotManagerConfiguration getSlotManagerConfiguration() {
		return slotManagerConfiguration;
	}

	// ---------------------------- Static methods ----------------------------------

	public static ResourceManagerRuntimeServicesConfiguration fromConfiguration(Configuration configuration) throws ConfigurationException {

		final String strJobTimeout = configuration.getString(ResourceManagerOptions.JOB_TIMEOUT);
		final Time jobTimeout;

		try {
			jobTimeout = Time.milliseconds(Duration.apply(strJobTimeout).toMillis());
		} catch (NumberFormatException e) {
			throw new ConfigurationException("Could not parse the resource manager's job timeout " +
				"value " + ResourceManagerOptions.JOB_TIMEOUT + '.', e);
		}

		final SlotManagerConfiguration slotManagerConfiguration = SlotManagerConfiguration.fromConfiguration(configuration);

		return new ResourceManagerRuntimeServicesConfiguration(jobTimeout, slotManagerConfiguration);
	}
}
